Surface flashover breakdown mechanisms on liquid immersed dielectrics
Flashover formation and expansion mechanisms on the surfaces of different dielectrics immersed in transformer oil have been numerically analyzed. Streamers emanating from a needle electrode tend to transform to surface flashovers if the immersed dielectric permittivity is higher than the liquid perm...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Institute of Physics (AIP)
2013
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| Online Access: | http://hdl.handle.net/1721.1/79127 https://orcid.org/0000-0003-2228-2347 |
| _version_ | 1826211667452624896 |
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| author | Jadidian, Jouya Zahn, Markus Lavesson, Nils Widlund, Ola Borg, Karl |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Jadidian, Jouya Zahn, Markus Lavesson, Nils Widlund, Ola Borg, Karl |
| author_sort | Jadidian, Jouya |
| collection | MIT |
| description | Flashover formation and expansion mechanisms on the surfaces of different dielectrics immersed in transformer oil have been numerically analyzed. Streamers emanating from a needle electrode tend to transform to surface flashovers if the immersed dielectric permittivity is higher than the liquid permittivity and/or the dielectric interfacial surface cuts the path of the streamer. Perpendicular interface of the immersed dielectric impedes the breakdown by deflecting the streamer and slowing down the surface flashover. The parallel dielectric interface, however, assists the breakdown by regulating the surface flashover velocity to an approximately constant value (∼10 km/s). |
| first_indexed | 2024-09-23T15:09:37Z |
| format | Article |
| id | mit-1721.1/79127 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:09:37Z |
| publishDate | 2013 |
| publisher | American Institute of Physics (AIP) |
| record_format | dspace |
| spelling | mit-1721.1/791272022-10-02T00:59:08Z Surface flashover breakdown mechanisms on liquid immersed dielectrics Jadidian, Jouya Zahn, Markus Lavesson, Nils Widlund, Ola Borg, Karl Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Research Laboratory of Electronics Jouya Jadidian Jadidian, Jouya Zahn, Markus Flashover formation and expansion mechanisms on the surfaces of different dielectrics immersed in transformer oil have been numerically analyzed. Streamers emanating from a needle electrode tend to transform to surface flashovers if the immersed dielectric permittivity is higher than the liquid permittivity and/or the dielectric interfacial surface cuts the path of the streamer. Perpendicular interface of the immersed dielectric impedes the breakdown by deflecting the streamer and slowing down the surface flashover. The parallel dielectric interface, however, assists the breakdown by regulating the surface flashover velocity to an approximately constant value (∼10 km/s). IEEE Dielectrics and Electrical Insulation Society 2013-06-17T15:32:52Z 2013-06-17T15:32:52Z 2012-04 2012-02 Article http://purl.org/eprint/type/JournalArticle 0003-6951 http://hdl.handle.net/1721.1/79127 Jadidian, Jouya, Markus Zahn, Nils Lavesson, Ola Widlund, and Karl Borg. Surface Flashover Breakdown Mechanisms on Liquid Immersed Dielectrics. Applied Physics Letters 100, no. 17 (2012): 172903. doi:10.1063/1.4705473. https://orcid.org/0000-0003-2228-2347 en_US http://dx.doi.org/10.1063/1.4705473 Applied Physics Letters Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf American Institute of Physics (AIP) Jouya Jadidian |
| spellingShingle | Jadidian, Jouya Zahn, Markus Lavesson, Nils Widlund, Ola Borg, Karl Surface flashover breakdown mechanisms on liquid immersed dielectrics |
| title | Surface flashover breakdown mechanisms on liquid immersed dielectrics |
| title_full | Surface flashover breakdown mechanisms on liquid immersed dielectrics |
| title_fullStr | Surface flashover breakdown mechanisms on liquid immersed dielectrics |
| title_full_unstemmed | Surface flashover breakdown mechanisms on liquid immersed dielectrics |
| title_short | Surface flashover breakdown mechanisms on liquid immersed dielectrics |
| title_sort | surface flashover breakdown mechanisms on liquid immersed dielectrics |
| url | http://hdl.handle.net/1721.1/79127 https://orcid.org/0000-0003-2228-2347 |
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